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frez [133]
3 years ago
13

How much force is needed to accelerate a 7.1 kg skier at 4 m/s/s?

Physics
2 answers:
zysi [14]3 years ago
5 0

Answer: 28.4

Explanation:

F=MA

F=(7.1)(4)

F= 28.4 N

liraira [26]3 years ago
4 0
You would need 28.4 N to accelerate
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3 years ago
If the 78.0 kg astronaut were in a spacecraft 6R from the center of the earth, what would the astronaut's weight be on earth? 76
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(a) 764.4 N

The weight of the astronaut on Earth is given by:

F=mg

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(b) 21.1 N

The spacecraft is located at a distance of

r=6R

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The acceleration due to gravity at a generic distance r from the Earth's center is

g=\frac{GM}{r^2}

where G is the gravitational constant and M is the Earth's mass.

We know that at a distance of r = R (at the Earth's surface) the value of g is 9.8 m/s^2, so we can write:

GM=9.8R^2 (1)

the acceleration due to gravity at r=6R instead will be

g'=\frac{GM}{(6R)^2}

And substituting (1) into this formula,

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So the weight of the astronaut at the spacecratf location is

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3 years ago
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Answer:

Answer to the question:

Explanation:

Differences between ionic bond and covalent bond:

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In the covalent bond there is an electron compartment, while in the ionic bond there is an electron transfer.

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